US5112254A - Electrical contacts - Google Patents

Electrical contacts Download PDF

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Publication number
US5112254A
US5112254A US07436616 US43661689A US5112254A US 5112254 A US5112254 A US 5112254A US 07436616 US07436616 US 07436616 US 43661689 A US43661689 A US 43661689A US 5112254 A US5112254 A US 5112254A
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US
Grant status
Grant
Patent type
Prior art keywords
contact
side
spring
portion
base
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US07436616
Inventor
Hiroshi Endo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Japan Aviation Electronics Industry Ltd
Original Assignee
Japan Aviation Electronics Industry Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RLINE CONNECTORS; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00-H01R33/00
    • H01R13/02Contact members
    • H01R13/10Sockets for co-operation with pins or blades
    • H01R13/11Resilient sockets
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RLINE CONNECTORS; CURRENT COLLECTORS
    • H01R43/00Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current connectors or for joining electric conductors
    • H01R43/16Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current connectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending

Abstract

This invention relates to an electrical socket contact, and more particularly to a solderless electrical wire terminal of a socket connector which can be formed from a sheet of conductive material and a portion for receiving a pin contact element is completely surrounded by four side walls.

Description

FIELD OF THE INVENTION

This invention relates generally to electrical contacts, and more particularly to electrical socket contacts.

BACKGROUND OF THE INVENTION

The invention relates to an electric socket contact to be connected with a pin contact, which can be manufactured from a strip or sheet of conductive material by means of press or forming machine.

In general, it is desirable to make electric socket contact so as to protect a contact spring section including two resilient arms which are used to connect a pin contact element from surroundings. To this end, usually, the contact spring section is surrounded by three sides, that is, the opposing side walls and an upper wall which can be formed by bending the strip. According to this type of a conventional socket contact, the back side of the contact spring section is not completely surrounded by the side walls, and therefore it is a disadvantage that the pin contact element is frequently inserted between the back of the contact spring section and a wall of the casing.

SUMMARY OF THE INVENTION

Accordingly, the principal object of the present invention to provide a new and improved electrical socket contact having good structural integrity in which the contact spring section is completely surrounded by four side walls which are of a generally box-like configuration.

BRIEF DESCRIPTION OF THE DRAWING

A more complete appreciation of the present invention and many of the attendant advantages thereof will be readily appreciated as the same become better understood by reference to the following detailed description when considered in connection with the accompanying drawing, wherein:

FIG. 1 is a plan view of the socket contact of the present invention attached to carrier strips at one stage of manufacture thereof;

FIG. 2 is a perspective view of the electric socket contact of the present invention; and

FIG. 3 is a partial sectional view illustrating a spring section with cutting off one of the side walls.

DESCRIPTION OF THE PREFERRED EMBODIMENT

Referring now in detail to the drawings, wherein like reference characters designate identical or corresponding parts throughout the several views, and more particularly to FIG. 1 wherein an electrical socket contact of the present invention is illustrated generally at 10 attached to the first and second carrier strips 12 and 13. The contact 10 has undergone a first step of manufacture wherein the contact and associated carrier strips have been punched from a strip or sheet of conductive material, and wherein one of the ends to form a solderless electrical wire receiving portion 14 has been formed by providing a first break line 16 between the contact 10 and the first carrier strip 12. In the same manner as the above, a second break line 20 is provided between a center contact arm which forms a base portion 18 of the contact 10 and the second carrier strip 13.

As shown in FIG. 2, in order to form the contact 10 into the shape as actually used, the portions are respectively bent in opposed directions.

As illustrated in FIGS. 2 and 3, when the contact 10 is in the fully formed condition, the wire receiving portion 14 is formed by an insulation cover holding portion 22 and a wire contact portion 24.

A first side flange which is parallel with the base portion 18 is bent to at an angle of 90° with the base portion 18 to form a first side wall 26 and a side portion which is parallel with the first side wall 26 is bent to at an angle of 90° with the first side wall 26 to form a spring base 28. Both ends of the spring base 28 are respectively bent in U-configuration to form an inner spring arm 30 and an outer spring arm 32. The outermost end of each of the inner and outer arms 30 and 32 is partially overlapped each other. In order to contact tightly the outer spring arm 32 of the connector of the present invention with a pin contact (not shown) inserted into the socket contact, the spring arm 32 is preferably provided with a protruded contact portion 34 and a nose portion 36.

A second side flange which is opposite to the first side flange and parallel with the base portion 18 is bent at an angle of 90° to form a second side wall 38. A third side flange adjacent to the second side wall 38 is inwardly bent at an angle of 90° to form a top wall 40. An end of the top wall 40 is longitudinally toward the second carrier strip 13 and bent at an angle of 90° to form a front cover 42 of an opening into which the pin contact is inserted.

It will be understood from the foregoing, the socket contact of the present invention can be formed by punching from a flat strip or sheet of conductive material. The socket contact may be formed by the base portion 18, the second and third side walls 26 and 38 which are respectively bent from each side of the base portion, the spring base 28 which is inwardly bent from the first side wall 26 and the inner and outer spring arms 30 and 32 which are respectively folded in U-like form from each end of the spring base portion 28 so as to overlap each other. In addition to the above, the top wall 40 can enclose the spring base portion 28 from the outside thereof, and the spring arms 30 and 32 are completely surrounded by the base portion 18, the side walls 26 and 38 and the top wall 40. And also the inner and outer spring arms 30 and 32 are respectively protected by the front cover 42 from the outside of the opening into which the pin contact is inserted.

Consequently, the spring arms 30 and 32 which are essential in contact with the pin contact are protected against an exterior force and the pin contact can be inserted into between them precisely.

While the preferred form of the present invention has been described, it is to be understood that modifications will be apparent to those skilled in the art without departing from the spirit of the invention.

The scope of the invention, therefore, is to be determined soley by the following claims.

Claims (1)

What is claimed is:
1. In an electrical socket contact adapted to receive a pin contact element, the socket contact being formed from a single sheet of conductive material comprising a base portion, first and second side walls which are respectively folded from each side of the base portion, and a spring base which is bent from the outside of the first side wall; the improvement comprising free ends of the spring base being respectively bent in U-form to overlap each other for receiving the pin contact element between one of the U-shaped ends and the base portion and for making electrical contact therewith, an outside portion of the second side wall being inwardly bent at a right angle from the second side wall to form a top wall for surrounding the backside of the spring base from the outside, and a portion of one end of the top wall being inwardly bent at a right angle to form a front cover to prevent the pin contact element from inserting into a space between the backside of the spring base and the top wall.
US07436616 1988-12-05 1989-11-15 Electrical contacts Expired - Lifetime US5112254A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP15770588U JPH0429508Y2 (en) 1988-12-05 1988-12-05
JP63-157705[U] 1988-12-05

Publications (1)

Publication Number Publication Date
US5112254A true US5112254A (en) 1992-05-12

Family

ID=15655572

Family Applications (1)

Application Number Title Priority Date Filing Date
US07436616 Expired - Lifetime US5112254A (en) 1988-12-05 1989-11-15 Electrical contacts

Country Status (4)

Country Link
US (1) US5112254A (en)
EP (1) EP0372736B1 (en)
JP (1) JPH0429508Y2 (en)
DE (2) DE68912540T2 (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5350321A (en) * 1992-01-28 1994-09-27 Yazaki Corporation Female terminal
EP0618644A2 (en) * 1993-03-30 1994-10-05 General Motors Corporation Female electrical terminal
US5443592A (en) * 1993-10-26 1995-08-22 Connecteurs Cinch Female electrical contact member
US5503570A (en) * 1993-11-08 1996-04-02 Sumitomo Wiring Systems, Ltd. Female terminal metal fixture for connector
US5624289A (en) * 1994-06-06 1997-04-29 The Whitaker Corporation High current receptacle terminal
US5649842A (en) * 1993-12-28 1997-07-22 Yazaki Corporation Terminal structure
US5791945A (en) * 1995-04-13 1998-08-11 The Whitaker Corporation High force contact
US5897405A (en) * 1997-05-29 1999-04-27 Endo; Hiroshi Electrical socket contact
US6203385B1 (en) * 1999-04-27 2001-03-20 Yazaki Corporation Electrical contact
US6428366B1 (en) 2000-11-03 2002-08-06 Molex Incorporated Electrical terminal socket and method of fabricating same
US6679738B2 (en) * 2000-12-18 2004-01-20 Sumitomo Wiring Systems, Ltd. Female terminal
US20060276085A1 (en) * 2005-05-20 2006-12-07 Hon Hai Precision Ind. Co., Ltd. Electrical contact element
US20070021013A1 (en) * 2005-07-21 2007-01-25 Tyco Electronics Corporation Dual beam receptacle contact
US7503813B1 (en) 2007-05-17 2009-03-17 Yazaki North America, Inc. Electrical terminal with contoured contact element
CN101133527B (en) 2005-02-09 2010-05-19 Fci公司 Electrical contact comprising spring contact plates
US20160006143A1 (en) * 2013-02-19 2016-01-07 Sumitomo Wiring Systems, Ltd. Female terminal fitting
US20160013569A1 (en) * 2013-03-05 2016-01-14 Sumitomo Wiring Systems, Ltd. Female terminal fitting

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19619514A1 (en) * 1996-05-14 1997-11-20 Grote & Hartmann Flat plug contact sleeve with resilient arm joined to base plate
JP3620786B2 (en) * 2000-01-24 2005-02-16 矢崎総業株式会社 The terminal fitting

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1231417A (en) * 1917-03-22 1917-06-26 Arrow Electric Co Attachment-plug receptacle.
US3299396A (en) * 1964-11-27 1967-01-17 Amp Inc Contact terminal
US3836947A (en) * 1973-02-23 1974-09-17 Amp Inc Electrical contact receptacle with helper spring
US4540233A (en) * 1983-10-01 1985-09-10 Tokai Electric Wire Company Limited Female electrical terminal having improved contactor block structure

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6322074B2 (en) * 1980-07-14 1988-05-10 Canon Kk
JPS6131491Y2 (en) * 1983-10-07 1986-09-12
JPH0312229Y2 (en) * 1986-07-25 1991-03-22
JPH0313987Y2 (en) * 1986-10-31 1991-03-28
FR2613878B3 (en) * 1987-04-10 1989-10-20 Francelco Sa Contact electrical contact members has protected

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1231417A (en) * 1917-03-22 1917-06-26 Arrow Electric Co Attachment-plug receptacle.
US3299396A (en) * 1964-11-27 1967-01-17 Amp Inc Contact terminal
US3836947A (en) * 1973-02-23 1974-09-17 Amp Inc Electrical contact receptacle with helper spring
US4540233A (en) * 1983-10-01 1985-09-10 Tokai Electric Wire Company Limited Female electrical terminal having improved contactor block structure

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5350321A (en) * 1992-01-28 1994-09-27 Yazaki Corporation Female terminal
EP0618644A2 (en) * 1993-03-30 1994-10-05 General Motors Corporation Female electrical terminal
EP0618644A3 (en) * 1993-03-30 1995-01-18 Gen Motors Corp Female electrical terminal.
US5443592A (en) * 1993-10-26 1995-08-22 Connecteurs Cinch Female electrical contact member
US5503570A (en) * 1993-11-08 1996-04-02 Sumitomo Wiring Systems, Ltd. Female terminal metal fixture for connector
US5649842A (en) * 1993-12-28 1997-07-22 Yazaki Corporation Terminal structure
US5624289A (en) * 1994-06-06 1997-04-29 The Whitaker Corporation High current receptacle terminal
US5791945A (en) * 1995-04-13 1998-08-11 The Whitaker Corporation High force contact
US5897405A (en) * 1997-05-29 1999-04-27 Endo; Hiroshi Electrical socket contact
US6203385B1 (en) * 1999-04-27 2001-03-20 Yazaki Corporation Electrical contact
US6428366B1 (en) 2000-11-03 2002-08-06 Molex Incorporated Electrical terminal socket and method of fabricating same
US6679738B2 (en) * 2000-12-18 2004-01-20 Sumitomo Wiring Systems, Ltd. Female terminal
US8043130B2 (en) * 2005-02-09 2011-10-25 Fci Automotive Holding Female electrical contact comprising spring contact plates
CN101133527B (en) 2005-02-09 2010-05-19 Fci公司 Electrical contact comprising spring contact plates
US20100130075A1 (en) * 2005-02-09 2010-05-27 Oncolys Biopharma Inc. Female Electrical Contact Comprising Spring Contact Plates
US20060276085A1 (en) * 2005-05-20 2006-12-07 Hon Hai Precision Ind. Co., Ltd. Electrical contact element
US20070021013A1 (en) * 2005-07-21 2007-01-25 Tyco Electronics Corporation Dual beam receptacle contact
US7387550B2 (en) * 2005-07-21 2008-06-17 Tyco Electronics Corporation Dual beam receptacle contact
US7503813B1 (en) 2007-05-17 2009-03-17 Yazaki North America, Inc. Electrical terminal with contoured contact element
US20160006143A1 (en) * 2013-02-19 2016-01-07 Sumitomo Wiring Systems, Ltd. Female terminal fitting
US9431723B2 (en) * 2013-02-19 2016-08-30 Sumitomo Wiring Systems, Ltd. Female terminal fitting
US20160013569A1 (en) * 2013-03-05 2016-01-14 Sumitomo Wiring Systems, Ltd. Female terminal fitting
US9515396B2 (en) * 2013-03-05 2016-12-06 Sumitomo Wiring Systems, Ltd. Female terminal fitting

Also Published As

Publication number Publication date Type
DE68912540T2 (en) 1994-05-05 grant
EP0372736A3 (en) 1990-12-19 application
JPH0429508Y2 (en) 1992-07-16 grant
DE68912540D1 (en) 1994-03-03 grant
EP0372736B1 (en) 1994-01-19 grant
JPH0277876U (en) 1990-06-14 application
EP0372736A2 (en) 1990-06-13 application

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Legal Events

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AS Assignment

Owner name: JAPAN AVIATION ELECTRONICS INDUSTRY, LTD., JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ENDO, HIROSHI;REEL/FRAME:005231/0768

Effective date: 19891101

FPAY Fee payment

Year of fee payment: 4

FPAY Fee payment

Year of fee payment: 8

FPAY Fee payment

Year of fee payment: 12